等精度频率测量
accuracy frequency measurement
equal observations of frequency
Equal observation of frequency
precision frequency meter
等精度频率计
equal precision frequency meter
高精度频率测量
high-precision frequency measurement
高精度FFT算法、大功率变频器
High-Precision FFT Algorithm
high power inverter
频率整定精度
accuracy of frequency adjustment
保证率频率
guaranteed rate frequency
保证率频率法
guaranteed rate-frequency method
Guarantee rate-Frequency method
保证率-频率法
Guarantee rate-Frequency method
测频精度
frequency measurement accuracy
precision of frequency measurement
长度频度分析法
length-frequency analysis
沉积物粒度频率分布
sediment-size frequency distribution
粗精频率跟踪
Coarse and fine frequency tracking
大气稳定度频率
frequency of atmospheric stability